Anti-kickback rollers on WoodWorks

>The anti-kickback rollers David Marks uses on WoodWorks look to be
>industrial-strength... Does anyone recognize the brand & model? And do
>they work well?
>

Try

http://woodworker.com/cgi-bin/fullpres.exe?PARTNUM=96974&LARGEVIEW=ON&Last
Cookie=200201114004317

I have not used them so I have no idea if they work well.
(The other)Mike G.